I think god Mara was the one who tried to stop Buddha from reaching nirvana. Mara was tempting Buddha with images of "wordly" things while Buddha was meditating under his holy tree.In Dalmatia (Croatia) Mara is a female name and is a variation of Mary. What is more the croatian waord for ladybug or ladybird is buba mara (buba=bug), so the exact translation of it would be Mary`s bug. Actually my great-grandmother`s name was Mara and she was a very nice lady :-)